PSYCH 1101 Lecture Notes - Lecture 30: Confirmation Bias

• School: Cornell University
• Department: Psychology
• Course: PSYCH 1101
• Professor: David Pizarro

Document Summary

Self-serving biases: people tends to maintain a positive view of themselves and think that they are above average, the better-than-average effect. 70% of 1 million high school seniors thought they were above average in leadership skills. 94% of college professors thought they did above average work. People tend to report that they are better than average at assessing their abilities without bias: overconfidence. College students tended to finish their senior thesis 3 weeks later than their most realistic estimate and 1 week later than their worst case scenario. We are overconfident in our judgements of our abilities. Dunning-kruger effect: the less you know about something, the more likely you are to overestimate your ability. People with low iq scores are likely to overestimate them. People with high iq scores are likely to underestimate them. When husbands and wives were asked how much housework they do, the percentages add up to more than 100%